Matthias V.

My name is Matthias, I'm a software developer with 10+ years of experience, and since 2019 I've focused on Python and AI. I build LLM apps, generative image tools, and the backends that run them. I've been working with Stable Diffusion since the day it launched, and I keep up with what's current. These days that means Flux.2 and Z-Image for image generation, GPT-5.5 and open models like Mistral for text. I've shipped real products with this stuff, not just demos. Some things I've built: a children's story generator that writes and illustrates stories, a tool that summarizes YouTube videos, an app that auto-illustrates articles, and a roleplay app for practicing social skills running on a fine-tuned Mistral model. Every one went from idea to live and deployed. What I'm good at is taking an AI model and turning it into something that actually works for users. GPT integration, a custom image pipeline, a fine-tuned model, or a full Python backend with the API and server setup behind it. I can also build the iOS or Mac app on top if you need it, since that's where I started. What I can build for you: - LLM apps and chatbots (GPT-5.5, Mistral, local models) - Image generation pipelines (Flux, Z-Image, Stable Diffusion, fine-tuning) - Python backends and APIs (FastAPI, Flask, Django) - Fine-tuning, RAG, and LangChain setups - Web scraping and data extraction - Deployment on Docker, Linux, AWS, GCP Core skills: - Languages: Python, JavaScript, Swift, Objective-C - AI/ML: GPT-5.5 API, Flux, Z-Image, Stable Diffusion, fine-tuning, LangChain, PyTorch - Backend: FastAPI, Flask, Django, PostgreSQL, Redis, Celery - Infra: Docker, Linux, AWS, GCP, Git, Nginx Why hire me: I finish what I start. Everything above is deployed and working. I've co-founded a few startups so I think about the product and the user, not just the code. And I'm easy to work with, I communicate clearly and hit deadlines. Let's talk about your project.